Global Patent Index - EP 2675165 A4

EP 2675165 A4 20140226 - VIDEO-IMAGE ENCODING/DECODING METHOD, ENCODING APPARATUS, DECODING APPARATUS AND SYSTEM THEREOF

Title (en)

VIDEO-IMAGE ENCODING/DECODING METHOD, ENCODING APPARATUS, DECODING APPARATUS AND SYSTEM THEREOF

Title (de)

VIDEOBILDCODIERUNGS-/DECODIERUNGSVERFAHREN, CODIERVORRICHTUNG, DECODIERVORRICHTUNG UND SYSTEM DAFÜR

Title (fr)

PROCÉDÉ DE CODAGE/DÉCODAGE D'IMAGES VIDÉO, APPAREIL DE CODAGE, APPAREIL DE DÉCODAGE ET SYSTÈME ASSOCIÉ

Publication

EP 2675165 A4 20140226 (EN)

Application

EP 11860536 A 20111028

Priority

  • CN 201110057554 A 20110310
  • CN 2011081497 W 20111028

Abstract (en)

[origin: EP2675165A1] Embodiments of the present invention provide an encoding method, a decoding method, an encoding apparatus, a decoding apparatus, for a video image. The encoding method includes: determining an optimal integrated candidate block for a current block based on a motion vector integration technology; determining, based a prediction direction of the optimal integrated candidate block, a motion vector derivation mode that needs to be used by a decoder; correcting a motion vector of the current block based on the motion vector derivation mode; and determining a residual between a predicted value and an original value of the current block based on the corrected motion vector, thereby encoding the current block. According to the technical solutions, a more accurate predicted value is obtained by correcting the motion vector, and a smaller residual is generated, thereby improving encoding efficiency, avoiding an increase in data bandwidth, improving decoding quality, and reducing calculation complexity.

IPC 1-7

H04N 7/32; H04N 7/36; H04N 7/26

CPC (source: EP US)

H04N 19/51 (2014.11 - US); H04N 19/513 (2014.11 - US); H04N 19/517 (2014.11 - EP US); H04N 19/523 (2014.11 - EP US); H04N 19/56 (2014.11 - EP US); H04N 19/567 (2014.11 - EP US)

Citation (search report)

  • [X] WO 2010086041 A1 20100805 - UNIV HANNOVER [DE], et al
  • [X] KAMP (RWTH AACHEN UNIV) S ET AL: "Video coding technology proposal by RWTH Aachen University", 1. JCT-VC MEETING; 15-4-2010 - 23-4-2010; DRESDEN; (JOINTCOLLABORATIVE TEAM ON VIDEO CODING OF ISO/IEC JTC1/SC29/WG11 AND ITU-TSG.16 ); URL: HTTP://WFTP3.ITU.INT/AV-ARCH/JCTVC-SITE/, no. JCTVC-A112, 17 April 2010 (2010-04-17), XP030007549, ISSN: 0000-0049
  • [X] Y-JEN CHIU ET AL: "TE1: Fast techniques to improve self derivation of motion estimation", 2. JCT-VC MEETING; 21-7-2010 - 28-7-2010; GENEVA; (JOINT COLLABORATIVETEAM ON VIDEO CODING OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ); URL:HTTP://WFTP3.ITU.INT/AV-ARCH/JCTVC-SITE/, no. JCTVC-B047, 28 July 2010 (2010-07-28), XP030007627, ISSN: 0000-0048
  • [X] YI-JEN CHIU ET AL: "Self-derivation of motion estimation techniques to improve video coding efficiency", PROCEEDINGS OF SPIE, vol. 7798, 19 August 2010 (2010-08-19), pages 77980Z, XP055096206, ISSN: 0277-786X, DOI: 10.1117/12.862719
  • [X] STEFFEN KAMP ET AL: "Decoder-side motion vector derivation for hybrid video inter coding", MULTIMEDIA AND EXPO (ICME), 2010 IEEE INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 19 July 2010 (2010-07-19), pages 1277 - 1280, XP031761432, ISBN: 978-1-4244-7491-2
  • [X] STEFFEN KAMP ET AL: "Decoder side motion vector derivation for inter frame video coding", IMAGE PROCESSING, 2008. ICIP 2008. 15TH IEEE INTERNATIONAL CONFERENCE, IEEE, PISCATAWAY, NJ, USA, 12 October 2008 (2008-10-12), pages 1120 - 1123, XP031374203, ISBN: 978-1-4244-1765-0
  • [A] KLOMP S ET AL: "Decoder-side block motion estimation for H.264 / MPEG-4 AVC based video coding", CIRCUITS AND SYSTEMS, 2009. ISCAS 2009. IEEE INTERNATIONAL SYMPOSIUM ON, IEEE, PISCATAWAY, NJ, USA, 24 May 2009 (2009-05-24), pages 1641 - 1644, XP031479529, ISBN: 978-1-4244-3827-3
  • See also references of WO 2012119456A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2675165 A1 20131218; EP 2675165 A4 20140226; CN 102685504 A 20120919; CN 102685504 B 20150819; US 10484702 B2 20191119; US 11206420 B2 20211221; US 11765379 B2 20230919; US 2014016704 A1 20140116; US 2018077424 A1 20180315; US 2020077112 A1 20200305; US 2022086477 A1 20220317; US 2024031593 A1 20240125; US 9860531 B2 20180102; WO 2012119456 A1 20120913

DOCDB simple family (application)

EP 11860536 A 20111028; CN 2011081497 W 20111028; CN 201110057554 A 20110310; US 201314020953 A 20130909; US 201715822657 A 20171127; US 201916674862 A 20191105; US 202117535693 A 20211126; US 202318451855 A 20230818